Add a Dockerfile

Dockerfile

@@ -0,0 +1,32 @@
+# Dockerfile for the blog.
+#
+# Building:
+#
+#    docker build -t blog .
+#
+# Running:
+#
+#    # listen on localhost:8000 and use /home/user/www as the user root
+#    docker run -p 8000:80 -v /home/user/www:/data/www blog
+#
+# Running and Backgrounding:
+#
+#    # run it with a name to start with
+#    docker run -d --name blog -v /home/user/www:/data/www blog
+#
+#    # later...
+#    docker start blog
+FROM fedora:latest
+
+RUN dnf -y update
+RUN dnf -y install golang make
+
+WORKDIR /go/src/github.com/kirsle/blog
+ADD . /go/src/github.com/kirsle/blog
+
+ENV GOPATH /go
+RUN go get ./...
+RUN make build
+
+EXPOSE 80
+CMD ["/go/src/github.com/kirsle/blog/bin/blog", "-a", ":80", "/data/www"]

Makefile

@@ -2,7 +2,7 @@ SHELL := /bin/bash
 
 VERSION=$(shell grep -e 'Version' blog.go | head -n 1 | cut -d '"' -f 2)
 BUILD=$(shell git describe --always)
-CURDIR=$(shell curdir)
+CURDIR=$(shell pwd)
 
 # Inject the build version (commit hash) into the executable.
 LDFLAGS := -ldflags "-X main.Build=$(BUILD)"
@@ -38,3 +38,13 @@ clean:
 .PHONY: hardclean
 hardclean: clean
 	rm -rf root/.private
+
+# `make docker.build` to build the Docker image
+.PHONY: docker.build
+docker.build:
+	docker build -t blog .
+
+# `make docker.run` to run the docker image
+.PHONY: docker.run
+docker.run:
+	docker run --rm --name blog_debug -p 8000:80 -v $(CURDIR)/user-root:/data/www blog

README.md

@@ -4,6 +4,8 @@ This is a web blog and personal homepage engine written in Go. It includes a
 full-featured web blog (with tags, archive views, etc.) and can serve static
 web assets, Go HTML templates and Markdown pages.
 
+# Features
+
 ## Zero Configuration
 
 Blog is designed to be extremely easy to run: just give it a path to your
@@ -16,6 +18,8 @@ blog $HOME/www
 See `blog -h` for command line arguments, for example to make it listen on a
 different port number.
 
+The blog database is kept on disk as JSON files under the document root.
+
 ## Dual Template System
 
 Whenever a web request is handled by the Blog program, it checks your
@@ -68,6 +72,33 @@ make run
 ./go-reload cmd/blog/main.go [options] [/path/to/document/root]
 ```
 
+## Docker
+
+This app includes a Dockerfile. Type `make docker.build` to build the
+Docker image.
+
+### Quick Start
+
+```bash
+make docker.build
+make docker.run
+```
+
+### Docker Image
+
+* Exposes port 80 for the web server
+* User document root is mounted at `/data/www`
+
+So to run the Docker image and have it listen on `localhost:8000` on the
+host and bind the user document root to `/home/user/www`:
+
+```bash
+docker run -p 8000:80 -v /home/user/www:/data/www blog
+```
+
+You may also run `make docker.run` to run the Docker image on port 8000 using
+the `./user-root` directory
+
 ## Recommendation: Redis
 
 It is recommended to use the [Redis](https://redis.io) caching server in